Claim · model-written summary
On soils with organic hardpans, fertilizer, lime and/or minor elements placed in the subsoil increased corn yields.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- fertilizer, lime and/or minor elements placed in the subsoile1
- Outcome
- yielde1
- Direction
- increasese1
- Qualifier
- organic hardpans existede1
- Setting
- Leon fine sand, Ona fine sande1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn yields, root distribution and the chemical composition of ear leaves were used to measure responses”
e1“Where organic hardpans existed, as on the Leon fine sand, Ona fine sand, and combinations of these soil types with related soils, yield increases were obtained for subsoiling alone and fertilizer, lime and/or minor elements placed in the subsoil”
Title
Results from Subsoiling and Deep Fertilization of Corn for 2 Years
W. K. Robertson; J. G. A. Fiskell; C. E. Hutton; et al. Soil Science Society of America Journal 1957. doi:10.2136/sssaj1957.03615995002100030023x
Other claims from this paper (9)
- Intervention effect On soils with organic hardpans, subsoiling alone increased corn yields.
- Association Responses to fertilizer were related to the chemical composition of the soil profile and to rainfall distribution.
- Association Corn responses were better when moisture stress periods occurred during the first part of the season.
- Intervention effect With short drought periods, subsoiling and deep placed fertilizer improved corn yields above the check.
- Association With a 25-day drought, the advantage of a deeper root system and larger corn plant was lost.
- Intervention effect On Klej fine sand, surface fertilizer gave corn results as good as deep placement.
- Intervention effect On Klej fine sand, subsoiling alone gave no benefit to corn.
- Observation Residual effects of the subsoiling treatments on corn were generally small.
- Recommendation The authors suggest that corn may need subsoiling every year, although additional subsoil fertilizer may not be needed.